How does it work? During checkout, select Masterpass as a payment method and then select Piraeus Bank. Use your winbank credentials (username and password) to login to the secure environment of winbank web banking. Select the card you want to charge for your transaction. Confirm the pre-filled information of the merchant and transaction amount . Afterwards, you are redirected back to the merchant’s website in order to complete your payment. All Piraeus Bank debit, credit and reloadable prepaid cards are accepted (Visa ή Mastercard). In order to use Piraeus Bank Masterpass, you must be a registered winbank user, remember your credentials and own at least one Piraeus Bank card.